U.S. patent number 9,959,000 [Application Number 15/229,107] was granted by the patent office on 2018-05-01 for touch sensing device.
This patent grant is currently assigned to Industrial Technology Research Institute. The grantee listed for this patent is Industrial Technology Research Institute. Invention is credited to Yu-Jen Chen, Chen-Pang Kung, Chen-Wei Lin.
United States Patent |
9,959,000 |
Kung , et al. |
May 1, 2018 |
Touch sensing device
Abstract
A touch sensing device is provided. The device includes a
substrate; a plurality of first electrodes formed on the substrate
and arranged along a first direction without overlapping one
another; a first insulating layer formed on the substrate and
covering the plurality of first electrodes; and a plurality of
second electrodes formed on the first insulating layer and arranged
along a second direction without overlapping one another, wherein
the first direction is orthogonal to the second direction.
Inventors: |
Kung; Chen-Pang (Taoyuan,
TW), Chen; Yu-Jen (Pingtung County, TW),
Lin; Chen-Wei (Kaohsiung, TW) |
Applicant: |
Name |
City |
State |
Country |
Type |
Industrial Technology Research Institute |
Hsinchu |
N/A |
TW |
|
|
Assignee: |
Industrial Technology Research
Institute (Hsinchu, TW)
|
Family
ID: |
42980646 |
Appl.
No.: |
15/229,107 |
Filed: |
August 4, 2016 |
Prior Publication Data
|
|
|
|
Document
Identifier |
Publication Date |
|
US 20160342243 A1 |
Nov 24, 2016 |
|
Related U.S. Patent Documents
|
|
|
|
|
|
|
Application
Number |
Filing Date |
Patent Number |
Issue Date |
|
|
14622907 |
Feb 15, 2015 |
9437155 |
|
|
|
12690908 |
Mar 17, 2015 |
8982088 |
|
|
|
Foreign Application Priority Data
|
|
|
|
|
Apr 15, 2009 [TW] |
|
|
98112461 A |
|
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
G06F
3/0445 (20190501); G09G 5/00 (20130101); G06F
3/042 (20130101); G06F 2203/04107 (20130101); G09G
2300/0426 (20130101); G06F 2203/04112 (20130101); G06F
2203/04103 (20130101) |
Current International
Class: |
G06F
3/044 (20060101); G09G 5/00 (20060101); G06F
3/042 (20060101) |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Lee; Gene W
Attorney, Agent or Firm: JCIPRNET
Parent Case Text
CROSS REFERENCE TO RELATED APPLICATION
This is a divisional application of and claims the priority benefit
of U.S. application Ser. No. 14/622,907, filed on Feb. 15, 2015,
now allowed. The prior U.S. application Ser. No. 14/622,907 is a
divisional application of U.S. application Ser. No. 12/690,908,
filed on Jan. 20, 2010, now patented as U.S. Pat. No. 8,982,088B2,
which claims the priority benefit of Taiwan application serial no.
98112461, filed on Apr. 15, 2009. The entirety of each of the
above-mentioned patent applications is hereby incorporated by
reference herein and made a part of this specification.
Claims
What is claimed is:
1. A touch sensing device, comprising: a substrate; a plurality of
first electrodes formed on the substrate and arranged along a first
direction without overlapping one another; a first insulating layer
formed on the substrate and covering the plurality of first
electrodes; a plurality of second electrodes formed on the first
insulating layer and arranged along a second direction without
overlapping one another, wherein each of the plurality of second
electrodes has a first surface facing away from the first
insulating layer and two second surfaces being opposite to each
other and connecting the first surface and the first insulating
layer; a protecting layer formed on the first insulating layer and
covering the first surface and the second surfaces of each of the
plurality of second electrodes; and an isolating layer directly
formed on the substrate and configured to prevent interference from
a side of the isolating layer facing away from the substrate, the
substrate being between the isolating layer and the first
electrodes, the isolating layer comprising: a second insulating
layer formed on the substrate; and a third electrode layer formed
on the second insulating layer, wherein the first direction is
orthogonal to the second direction, and the first electrodes and
the second electrodes are configured to sense capacitance variation
in response to a conductor indirectly touching the second
electrodes, wherein the touch sensing device further comprises an
adhesive layer formed on the side of the isolating layer facing
away from the substrate and extending from an edge of the isolating
layer to a central portion of the isolating layer, and the adhesive
layer is in direct contact with the isolating layer, and wherein a
display device is disposed directly on the adhesive layer of the
touch sensing device, the isolating layer is configured to prevent
interference from the display device, and the adhesive layer
extends from an outer edge of the display device to a central
portion of the display device.
2. The touch sensing device as claimed in claim 1, wherein the
second insulating layer is disposed between the substrate and the
third electrode layer and in direct contact with the substrate and
the third electrode layer.
3. The touch sensing device as claimed in claim 1, further
comprising the conductor, wherein the first electrodes and the
second electrodes are used to sense total capacitance variation
according to the conductor indirectly touching the second
electrodes.
4. The touch sensing device as claimed in claim 1, wherein the
display device comprises a substrate device, a display medium
layer, and a bottom device, the adhesive layer bonds the substrate
device to the isolating layer, the display medium layer is disposed
between the substrate device and the bottom device, and the
substrate device is disposed between the display medium layer and
the adhesive layer.
5. The touch sensing device as claimed in claim 4, wherein the
adhesive layer is in direct contact with the substrate device and
the isolating layer.
6. The touch sensing device as claimed in claim 1, wherein the
protecting layer is a scrape-proof layer, an anti-reflection layer,
a water-proof layer, or a gas-proof layer.
Description
BACKGROUND
Technique Field
The disclosure relates to a touch sensing device.
Description of the Related Art
The conventional capacitive touch sensing display is formed by
externally bonding one or two touch sensing panels to a display
panel. The substrate material of the touch sensing panels may be a
patterned ITO 0.7 mm or 0.5 mm glass, or a single layer patterned
175 um or 150 um PET/ITO substrate. While the glass substrate is
formed at higher temperatures, beneficial for forming low
resistance ITO electrode for fabrication of a stacked structure and
large area manufacturing, the fabricated glass substrate is not
flexible and has low capacitance sensitivity due to the thickness
of the glass substrate, hindering applicability. Meanwhile, the
PET/ITO substrate is formed at lower temperatures, forming high
resistance ITO electrodes, hindering fabrication of a stacked
structure and large area manufacturing.
U.S. Pat. No. 7,109,978 discloses a sense plane. The sense plane
includes a touch sensor array 22, wherein top, bottom, composite
and cross-sectional views are respectively shown in FIG. 1A-1D. The
touch sensor array 22 includes a substrate 24 having a first set of
conductive traces 26 disposed on a top surface 28 thereof and in a
first direction to comprise row positions of the touch sensor array
22. A second set of conductive traces 30 are disposed on a bottom
surface 32 thereof and in a second direction orthogonal to the
first direction to form the column positions of the touch sensor
array 22. The first and second set of conductive traces 26 and 30
alternately contact with the sense pads 34. An insulating layer 36
is disposed over the sense pads 34 on top surface 28 to insulate a
human finger or other object therefrom. The substrate disclosed in
the U.S. Pat. No. 7,109,978 may be a Print Circuit Board (PCB) or a
flexible PCB or any other useable circuit connection structure. The
insulating layer 36 is a thin layer (i.e., Mylar). Therefore, in
the manufacturing of the sense panel and the display panel, an
assembly process for externally bonding is needed.
Thus, it provides a touch sensing device, formed with low
resistance ITO electrodes, having high capacitance sensitivity,
flexibility and no external bonding assembly process.
SUMMARY
A detailed description is given in the following embodiments with
reference to the accompanying drawings.
An embodiment of the invention provides a touch sensing device
including a substrate, a plurality of first electrodes, a first
insulating layer, a plurality of second electrodes, a protecting
layer, a material layer, and one or more layer pairs. The first
electrodes are formed on the substrate and arranged along a first
direction without overlapping one another. The first insulating
layer is formed on the substrate and covers the plurality of first
electrodes. The second electrodes are funned on the first
insulating layer and arranged along a second direction without
overlapping one another, wherein each of the plurality of second
electrodes has a first surface facing away from the first
insulating layer and two second surfaces being opposite to each
other and connecting the first surface and the first insulating
layer. The protecting layer is formed on the first insulating layer
and covers the first surface and the second surfaces of each of the
plurality of second electrodes. The material layer is formed on the
substrate and includes a second insulating layer or an adhesive
layer. The one or more layer pairs are formed on the material
layer, wherein when the one layer pair is formed on the material
layer, the layer pair includes a third electrode layer and a third
insulating layer formed on the material layer in sequence, and
wherein when the layer pairs are formed on the material layer, the
layer pairs are formed on the material layer in sequence, and each
of the layer pairs includes a third electrode layer and a third
insulating layer formed in sequence from a side adjacent to the
material layer to another side away from the material layer. The
touch sensing device further includes another third electrode layer
formed on the one or more layer pairs. The first direction is
orthogonal to the second direction, and the first electrodes and
the second electrodes are configured to sense capacitance variation
in respond to a conductor indirectly touching the second
electrodes.
An embodiment of the invention provides a touch sensing device
including a substrate, a plurality of first electrodes, a first
insulating layer, a plurality of second electrodes, a protecting
layer, and an adhesive layer. The first electrodes are formed on
the substrate and arranged along a first direction without
overlapping one another. The first insulating layer is formed on
the substrate and covers the plurality of first electrodes. The
second electrodes are formed on the first insulating layer and
arranged along a second direction without overlapping one another,
wherein each of the plurality of second electrodes has a first
surface facing away from the first insulating layer and two second
surfaces being opposite to each other and connecting the first
surface and the first insulating layer. The protecting layer is
formed on the first insulating layer and covers the first surface
and the second surfaces of each of the plurality of second
electrodes. The adhesive layer is formed on the substrate and bonds
a display device to the substrate. The first direction is
orthogonal to the second direction, and the first electrodes and
the second electrodes are configured to sense capacitance variation
in respond to a conductor indirectly touching the second
electrodes.
An embodiment of the invention provides a touch sensing device
including a substrate, a plurality of first electrodes, a first
insulating layer, a plurality of second electrodes, a protecting
layer, a second insulating layer, and a third electrode layer. The
first electrodes are formed on the substrate and arranged along a
first direction without overlapping one another. The first
insulating layer is formed on the substrate and covers the
plurality of first electrodes. The second electrodes are formed on
the first insulating layer and arranged along a second direction
without overlapping one another, wherein each of the plurality of
second electrodes has a first surface facing away from the first
insulating layer and two second surfaces being opposite to each
other and connecting the first surface and the first insulating
layer. The protecting layer is formed on the first insulating layer
and covers the first surface and the second surfaces of each of the
plurality of second electrodes. The second insulating layer is
formed on the substrate. The third electrode layer is formed on the
second insulating layer. The first direction is orthogonal to the
second direction, and the first electrodes and the second
electrodes are configured to sense capacitance variation in respond
to a conductor indirectly touching the second electrodes.
In one embodiment, the invention provides a touch sensing device.
The touch sensing device includes: a non-conductor soft or hard
substrate, or a soft or hard compound substrate comprising
gas-water-proof material, anti-reflection optical material,
electrode-adhesion-enhanced material, planarization material, or
scrape-proof material; a plurality of first electrodes formed on
the substrate and arranged along a first direction without
overlapping one another; a first insulating layer formed on the
substrate and covering the plurality of first electrodes; and a
plurality of second electrodes formed on the first insulating layer
and arranged along a second direction without overlapping one
another, wherein the first direction is orthogonal to the second
direction. An isolating layer is formed on the second electrodes to
improve waterproofing, optical, planarization or anti-interference
performance.
In another embodiment, the invention provides a touch sensing
device. The touch sensing device includes: a non-conductor soft or
hard substrate, or a soft or hard compound substrate comprising
gas-water-proof material, anti-reflection optical material,
electrode-adhesion-enhanced material, planarization material, or
scrape-proof material; a plurality of first electrodes and a
plurality of second electrodes formed on the substrate and arranged
along a first direction and a second direction without overlapping
one another; a first insulating layer formed on the substrate and
covering the plurality of first electrodes and second electrodes,
and a plurality of cavities are formed on the first insulating
layer; a wire layer comprising a plurality of wires fondled on the
first insulating layer, and the first electrodes are connected by
the plurality of wires, wherein the first direction is orthogonal
to the second direction. An isolating layer is formed on the wire
layer to improve waterproofing, optical, planarization or
anti-interference performance.
In another embodiment, the invention provides a touch sensing
device. The touch sensing device includes: a soft or hard
substrate, or a soft or hard compound substrate comprising
gas-water-proof material, anti-reflection optical material,
electrode-adhesion-enhanced material, planarization material, or
scrape-proof material; a plurality of first electrodes formed on
the substrate and arranged along a first direction without
overlapping one another; and a first insulating layer formed on the
substrate and covering the plurality of first electrodes; a
plurality of second electrodes formed on the first insulating layer
and arranged along a second direction without overlapping one
another; a protecting layer formed on the first insulating layer
and covering the second electrodes, wherein the first direction is
orthogonal to the second direction. An isolating layer is formed
under the substrate to improve waterproof, optical, planarization
or anti-interference performance.
In another embodiment, the invention provides a structure of a
touch sensing device. The touch sensing device includes: a soft or
hard substrate, or a soft or hard compound substrate comprising
gas-water-proof material, anti-reflection optical material,
electrode-adhesion-enhanced material, planarization material, or
scrape-proof material; a wire layer comprising a plurality of wires
formed on the substrate; a first insulating layer formed on the
wire layer and a plurality of cavities are formed in the first
insulating layer; a plurality of first electrodes and a plurality
of second electrodes formed on the substrate and arranged along a
first direction and a second direction without overlapping one
another, and the first electrodes are connected by the plurality of
wires via the plurality of cavities; and a protecting layer formed
on the first insulating layer and covering the plurality of first
electrodes and the second electrodes, wherein the first direction
is orthogonal to the second direction. An isolating layer is formed
between the wire layer and the substrate to improve waterproofing,
optical, planarization or anti-interference performance.
The above-mentioned touch sensitive structure provides display
devices (e.g., Electrophoresis Display, LCD, OLED Display etc.)
with a substrate basis.
BRIEF DESCRIPTION OF DRAWINGS
Embodiment can be more fully understood by reading the subsequent
detailed description and examples with references made to the
accompanying drawings, wherein:
FIG. 1A is a top view of a conventional touch sensing device;
FIG. 1B is a bottom view of a conventional touch sensing
device;
FIG. 1C is a composite view of a conventional touch sensing
device;
FIG. 1D is a cross-sectional view of a conventional touch sensing
device;
FIG. 2 is a diagram showing a display device;
FIG. 3 is a diagram showing a touch sensing device of an
embodiment;
FIG. 4 is a diagram showing a touch sensitive display device of an
embodiment;
FIG. 5 is a diagram showing a touch sensing device of another
embodiment;
FIG. 6 is a diagram showing a touch sensitive display device of
another embodiment;
FIG. 7 is a diagram showing a touch sensing device of another
embodiment;
FIG. 8 is a diagram showing a touch sensitive display device of
another embodiment;
FIG. 9 is a diagram showing a touch sensing device of another
embodiment;
FIG. 10 is a diagram showing a touch sensitive display device of
another embodiment;
FIG. 11 is a diagram showing a touch sensing device of another
embodiment;
FIG. 12 is a diagram showing a touch sensitive display device of
another embodiment;
FIG. 13 is a diagram showing a touch sensing device of another
embodiment;
FIG. 14 is a diagram showing a touch sensitive display device of
another embodiment;
FIG. 15 is a diagram showing a touch sensing device of another
embodiment;
FIG. 16 is a diagram showing a touch sensitive display device of
another embodiment;
FIG. 17 is a diagram showing a touch sensing device of another
embodiment;
FIG. 18 is a diagram showing a touch sensitive display device of
another embodiment;
FIG. 19 is a diagram showing a touch sensing device of another
embodiment;
FIG. 20 is a diagram showing a touch sensitive display device of
another embodiment;
FIG. 21 is a diagram showing a touch sensing device of another
embodiment;
FIG. 22 is a diagram showing a touch sensitive display device of
another embodiment;
FIG. 23 is a diagram showing a touch sensing device of another
embodiment;
FIG. 24 is a diagram showing a touch sensitive display device of
another embodiment;
FIG. 25 is a diagram showing a touch sensing device of another
embodiment;
FIG. 26 is a diagram showing a touch sensitive display device of
another embodiment;
DETAILED DESCRIPTION
In the following detailed description, for purposes of explanation,
numerous specific details are set forth in order to provide a
thorough understanding of the disclosed embodiments. It will be
apparent, however, that one or more embodiments may be practiced
without these specific details. In other instances, well-known
structures and devices are schematically shown in order to simplify
the drawing.
FIG. 2 is a diagram showing a display device which includes a
substrate device 210, a display medium 220 and a bottom device 230.
Generally, a touch sensing panel (not showed) is externally bonded
to the substrate device 210 and executed by conductors or
fingers.
FIG. 3 is a diagram showing a touch sensing device of an embodiment
of the invention. The touch sensing device 310 includes a substrate
311, a plurality of first electrodes 312, a first insulating layer
313 and a plurality of second electrodes 314.
The touch sensing device 310 includes the substrate 311 such as
glass or plastics (PET-polyethylene terephthalate, PI, PES etc.) or
functional material such as organic matter (e.g., SiO.sub.2, SiNx,
etc) or an inorganic matter (Parylene) material stack which are
used to increase hardness, water-tolerance, transmittance, and
rub-proofing. The plurality of first electrodes 312 which are
separated within an interval are formed on the substrate 311 and
arranged along a first direction (e.g., x axial) in 2D space. The
first electrodes 312 which are connected to one another by
conductive wires (not showed) are used to sense total capacitance
variation according to the conductor 100 (or a finger) indirectly
touches the first electrodes 312 in the x axial. The first
insulating layer 313 comprising material such as SiO2 or SiNx is
formed on the substrate 311 and covers the plurality of first
electrodes 312. The plurality of second electrodes 314 such as
transparent electrodes (e.g., ITO, AZO, IZO etc.) are formed on the
first insulating layer 313. The plurality of second electrodes 314
are separated within an interval and arranged along a second
direction (e.g., y axial) in 2D space. The second electrodes 314
which are connected to one another by conductive wires (not showed)
are used to sense total capacitance variation according to the
conductor 100 (or a finger) indirectly touches the first electrodes
312 in the y axial. The touch sensing device 310 can be a substrate
base of a substrate device 210 in a display device. A color filter
or co-plane electrodes can be added. The touch sensing device 310
also can be a substrate base of a bottom device 230 in the display
device. Film transistors or co-plane electrodes can be added. The
sequential processes are well known by those who are skilled in the
art, so it's not detailed herein.
In another embodiment, as shown in FIG. 4, a touch sensing device
320 includes a substrate 321, a plurality of first electrodes 322,
a first insulating layer 323, a plurality of second electrodes 324
and an adhesive layer 325.
The difference between the foregoing touch sensing device 310 and
the touch sensing device 320 is the adhesive layer 325. The touch
sensing device 320 can be externally bonded to the substrate device
210 in the display device through the adhesive layer 325 which may
be an OCA tape.
In another embodiment, as shown in FIG. 5, a touch sensing device
330 includes a substrate 331, a plurality of first electrodes 332,
a first insulating layer 333, a plurality of second electrodes 334
and an isolating layer 410. The difference between the foregoing
touch sensing device 310 and the touch sensing device 330 is the
isolating layer 410 having an insulating layer 411 and a third
electrode layer 412. The second insulating layer 411 is formed on
the second electrodes 334 and the third electrode layer 412 is
formed on the second insulating layer 411. The second insulating
layer 411 may be SiNx, SiO2, photo-resistor, plastics etc. The
third electrode layer 412 may be a transparent conductor such as an
ITO, IZO, AZO etc. The isolating layer 410 is used to prevent
interference from the display terminal. The touch sensing device
330 can be a substrate base of the substrate device 210 in a
display. For an LCD as an example, a color filter and co-planar
electrode process would be performed on the substrate device 210.
The display medium layer 220 would be liquid crystal and the bottom
device 230 would be a film transistor substrate.
The touch sensing device 340 as shown in FIG. 6 includes a
substrate 341, a plurality of first electrodes 342, a first
insulating layer 343, a plurality of second electrodes 344, an
adhesive layer 345 and an isolating layer 410 having a second
insulating layer 411 and a third electrode layer 412. The touch
sensing device 340 can be bonded to the substrate device 210
through the adhesive layer 345.
In another embodiment as shown in FIG. 7, the touch sensing device
350 has a compound isolating layer consisting of a plurality of
insulating layers and a plurality of electrode layers for raising
interference-proofing, water-proofing and optical performance. For
example, the touch sensing device 350 has a compound isolating
layer 420 consisting of the second insulating layer 411, a
plurality of third insulating layers 421 and a plurality of third
electrode layers 422 for raising interference-proofing,
water-proofing and optical performance. The third electrode layers
422 and the third insulating layers 421 are stacked alternately on
the second insulating layer 411. The touch sensing device 350 can
be a substrate base of the substrate device 210 in a display.
The touch sensing device 360 further includes an adhesive layer 365
as shown in FIG. 8. The touch sensing device 360 can be bonded to
the substrate device 210 through the adhesive layer 365 as shown in
FIG. 8 to form a touch sensitive display device.
In another embodiment as shown in FIG. 9, the touch sensing device
510 includes a substrate 511 such as glass or plastics
(PET-polyethylene terephthalate, PI, PES etc.) or functional
material such as organic matter (e.g., SiO.sub.2, SiNx, etc) or an
inorganic matter (Parylene) material stack which are used to
increase hardness, water-tolerance, transmittance, and
rub-proofing. A plurality of first electrodes 515 and a plurality
of second 512 are forming on the substrate 511 and arranged along a
first direction and a second direction without overlapping one
another. The plurality of first electrodes and second electrodes
are respectively along the first direction x axial and the second
direction y axial formed on the surface of the substrate 511 and
the electrodes are separated within an interval. The first
electrodes 515 and the second electrodes 512 (e.g., ITO, IZO, AZO
etc) are formed on the substrate 511 with a sputter method. The
second electrodes 512 are connected by conductive wires (not
showed) to sense total capacitance variation along a y axial
according to the conductor 100 (or a finger) indirectly touches the
first electrodes 312. A patterned first insulating layer 513
comprising material such as SiO2, SiNx or other organic matter is
manufactured by evaporation or other film processes to be formed on
the substrate 511 and cover the plurality of first electrodes 515
and second electrodes 512. Furthermore, a plurality of cavities as
passages are formed inside the first insulating layer 513. A wire
layer 514 having a plurality of wires is formed by a film process,
wherein the first electrodes 515 are connected by the wires through
the cavities and the wire layer 514. Wire material may be
transparent electrodes (e.g., ITO, IZO, AZO etc.) or metal
electrodes (e.g., Ti--Al--Ti, Al, Cu, MoW etc.). The touch sensing
device 510 can be a substrate base of a substrate device 210 in a
display device. A color filter or co-planer electrodes can be
added. The touch sensing device can also be a substrate basis of a
bottom device 230 in the display device. Film transistors or
co-planer electrodes can be added by manufacturing processes. The
sequential processes are well known by those who are skilled in the
art. So it's not detailed herein.
In another embodiment as shown in FIG. 10, the difference between
the foregoing touch sensing device 510 and the touch sensing device
520 is the adhesive layer 525. The touch sensing device 520 can be
externally bonded to the substrate device 210 in the display device
through the adhesive layer 525 which may be an OCA tape.
In another embodiment, as shown in FIG. 11, the difference between
the forgoing touch sensing device 510 and the touch sensing device
530 is the isolating layer 410 having a second insulating layer 411
and a third electrode layer 412. The second insulating layer 411 is
formed on the wire layer 534, and the third electrode layer 412 is
formed on the second insulating layer 411. The second insulating
layer 411 may be SiNx, SiO2, photo-resistor, plastics etc. The
third electrode layer 412 may be a transparent conductor such as
ITO, IZO, AZO etc. The isolating layer 410 is used to prevent
interference from the display terminal. The touch sensing device
530 can be a substrate base of the substrate device 210 in the
display. For an LCD as an example, a color filter and co-planar
electrode process would be performed on the substrate device 210.
The display medium layer 220 would be liquid crystal. The bottom
device 230 may be a film transistor substrate.
The touch sensing device 540 can be bonded to the substrate device
210 as shown in FIG. 12. The touch sensing device 540 includes a
substrate 541, a plurality of first electrodes 545 and a plurality
of second electrodes 542 and a first insulating layer. The
plurality of first electrodes 545 and the plurality of second
electrodes 542 are respectively formed on the substrate 541 and
arranged along a first direction x axial and a second direction y
axial in 2D space. The first and second electrodes are separated
with an interval. A plurality of cavities is formed inside the
first insulting layer 543 as passages. The touch sensing device 530
can be bonded to the substrate device 210 through the adhesive
layer 545 to form a touch sensitive display device.
In another embodiment as shown in FIG. 13, the touch sensing device
550 has a compound isolating layer 420 consisting of a second
insulating layer 411, a plurality of third insulating layers 421
and a plurality of third electrode layers 422 for raising
interference-proofing, water-proofing and optical performance. The
touch sensing device 550 can be a substrate base of the substrate
device 210 in the display.
The touch sensing device 560 further includes an adhesive layer 565
as shown in FIG. 14. The touch sensing device 560 can be bonded to
the substrate device 210 through the adhesive layer 565 as shown in
FIG. 14.
In another embodiment as shown in FIG. 15. The touch sensing device
610 includes a soft or a hard substrate 611 such as glass or
plastics (PET-polyethylene terephthalate, PI, PES etc.) or
functional material such as organic matter (e.g., SiO.sub.2, SiNx,
etc) or an inorganic matter (Parylene) material stack which are
used to increase hardness, water-tolerance, transmittance, and
rub-proofing. The plurality of first electrodes 612 (e.g., ITO,
AZO, IZO etc.) which are separated within an interval are formed on
the substrate 611 and arranged along a first direction (e.g., x
axial). The first insulating layer 613 (e.g., Parylene or SiNx,
SiO.sub.2) is formed on the substrate 611 with a film process
(e.g., evaporation or print coating) and covers the first
electrodes 612. The plurality of second electrodes 614 which are
separated within an interval are formed on the first insulating
layer 613 and arranged along a second direction (i.e., y axial) in
2D space. A protecting layer 615 such as a functional film such as
a scrape-proof layer or anti-reflection layer or water-proof layer
or gas-proof layer is coated on the first insulating layer 613 and
covers the second electrodes 614. The touch sensing device 610 can
be a substrate base of a substrate device 210 in a display device.
A color filter or co-plane electrodes can be added. The touch
sensing device also can be a substrate base of a bottom device 230
in the display device. Film transistors or co-planer electrodes can
be added. The sequential processes are well known by those who are
skilled in the art. So it's not detailed herein.
In another embodiment as shown in FIG. 16, the difference between
the forgoing touch sensing device 610 and the touch sensing device
620 is the adhesive layer 626. The touch sensing device 620 can be
externally bonded to the substrate device 210 in the display device
through the adhesive layer 626 which may be an OCA tape.
In another embodiment as shown in FIG. 17, the difference between
the forgoing touch sensing device 610 and the touch sensing device
630 is the isolating layer 410 having a second insulating layer 411
and a third electrode layer 412. The second insulating layer 411
such as organic insulating layer or inorganic layer (e.g.,
photoresist, plastics, Parylene, SIO.sub.2, SiNx etc.) is formed on
the other side of the substrate 631 by a coating process or an
evaporation process. After that, the third electrode layer 412
(e.g., ITO, IZO, AZO etc.) is formed on the insulating layer 411.
The touch sensing device 630 can be a substrate base of the
substrate device 210 in the display. For an LCD as an example, a
color filter and co-planar electrode process would be performed on
the substrate device 210. The display medium layer 220 would be
liquid crystal. The bottom device 230 may be film transistor
substrate.
The touch sensing device 640 further includes an adhesive layer 646
as shown in FIG. 18. The touch sensing device 640 can be bonded to
the substrate device 210 through the adhesive layer 646 as shown in
FIG. 18.
In another embodiment as shown in FIG. 19, the touch sensing device
650 has a compound isolating layer 420 consisting of a second
insulating layer 411, a plurality of third insulating layers 421
and a plurality of third electrode layers 422 for raising
interference-proofing, water-proofing and optical performance. The
touch sensing device 650 can be a substrate base of the substrate
device 210 in the display.
The touch sensing device 660 further includes an adhesive layer 666
as shown in FIG. 20. The touch sensing device 660 can be bonded to
the substrate device 210 through the adhesive layer 666 as shown in
FIG. 20 to form a touch sensitive display device.
In another embodiment as shown in FIG. 21. The touch sensing device
710 includes a soft or a hard substrate 711 such as glass or
plastics (PET-polyethylene terephthalate, PI, PES etc.) or
functional materials such as organic matter (e.g., SiO.sub.2, SiNx,
etc) or an inorganic matter (Parylene) material stack which are
used to increase hardness, water-tolerance, transmittance, and
rub-proofing. A wire layer 712 having conductive wires manufactured
from transparent conductive oxide electrode (e.g., ITO, IZO, AZO
etc.) or metal (e.g., Ti--Al--Ti, Al, MoW etc.) with sputter method
is formed on the substrate 711. A first insulating layer 713 such
as inorganic matter (e.g., SiNx, SiO.sub.2, etc.) or organic matter
(e.g., photoresist, Parylene, plastics etc.) is formed on the wire
layer 712. A plurality of first electrodes 716 and second
electrodes 714 (i.e., ITO, AZO, IGZO etc.) are formed on the first
insulating layer 713 and arranged respectively along an x axial and
a y axial. Pluralities of cavities as passages are formed inside
the first insulating layer 713 by an etching or laser process. The
first electrodes are connected by the wires in the wire layer 712
through the first insulating layer 713 and the cavities. A
protecting layer 715 such as functional film such as a scrape-proof
layer or anti-reflection layer or water-proof layer or gas-proof
layer is coated on the first insulating layer 713, and covers the
first electrodes 716 and the second electrodes 714. The touch
sensing device 710 can be a substrate base of a substrate device
210 in a display device. A color filter or co-planer electrodes can
be added. The touch sensing device can also be a substrate base of
a bottom device 230 in the display device. Film transistors or
co-planer electrodes can be added by manufacturing processes. The
sequential processes are well known by those who are skilled in the
art. So it's not detailed herein.
In another embodiment as shown in FIG. 22, the difference between
the foregoing touch sensing device 710 and the touch sensing device
720 is the adhesive layer 726. The touch sensing device 720 can be
externally bonded to the substrate device 210 in the display device
through the adhesive layer 726 which may be an OCA tape.
In another embodiment, as shown in FIG. 23, the difference between
the forgoing touch sensing device 710 and the touch sensing device
730 is the isolating layer 410 having a second insulating layer 411
and a third electrode layer 412. The third electrode layer 412
(e.g., ITO, IZO, AZO etc.) is firstly formed on the substrate 731.
After that, the second insulating layer 411 such as organic
insulating layer or inorganic layer (e.g., photoresist, plastics,
Parylene, SIO.sub.2, SiNx etc.) is formed on the second insulating
layer 411 by a coating process or an evaporation process before the
wire layer 732 is formed. The touch sensing device 730 can be a
substrate base of the substrate device 210 in the display. For the
LCD as an example, a color filter and co-planar electrode process
would be formed on the substrate device 210. The display medium
layer 220 would be liquid crystal. The bottom device 230 may be
film transistor substrate.
The touch sensing device 740 further includes an adhesive layer 746
as shown in FIG. 24. The touch sensing device 740 can be bonded to
the substrate device 210 through the adhesive layer 746 as shown in
FIG. 24.
In another embodiment as shown in FIG. 25, the touch sensing device
750 has a compound isolating layer 420 consisting of a second
insulating layer 411, a plurality of third insulating layers 421
and a plurality of third electrode layers 422 for raising
interference-proofing, water-proofing and optical performance. The
touch sense device 750 can be a substrate base of the substrate
device 210 in the display.
The touch sensing device 760 further includes an adhesive layer 766
as shown in FIG. 26. The touch sensing device 760 can be bonded to
the substrate device 210 through the adhesive layer 766 as shown in
FIG. 26 to form a touch sensitive display device.
The display devices are manufactured by semiconductor process
without externally bonding process to increase product stability
and decrease cost. The touch sensing devices can also be assembled
to electronic product display surfaces by adhesion.
While the invention has been described by way of example and in
terms of the preferred embodiments, it is to be understood that the
invention is not limited to the disclosed embodiments. To the
contrary, it is intended to cover various modifications and similar
arrangements (as would be apparent to those skilled in the art).
Therefore, the scope of the appended claims should be accorded the
broadest interpretation so as to encompass all such modifications
and similar arrangements.
* * * * *